<template>
    <div
    class="list" ref="wrapper">
    <div>
   <div class="area"><div>
       <div class="title">当前城市</div>
       <div class="button-list">
           <div class="button-wrapper">
               <div class="button">{{this.$store.state.city}}</div>
           </div>
       </div>
       </div></div>

   <div class="area">
    <div class="title">热门城市</div>
           <div class="button-list">
           <div class="button-wrapper" v-for="city of hotCity" :key="city.id" @click="handleClick(city.name)">
               <div class="button" >{{city.name}}</div>
           </div>
    </div>
   </div>
   <div class="area">
       <div v-for="(city,index) of cities" :key="index" :ref="index">
       <div class="title border-topbottom">{{index}}</div>
         <div class="item-list">
           <div class="item border-bottom" v-for="item in city" :key="item.id" @click="handleClick(item.name)">{{item.name}}</div>
       </div>
       </div>
        </div>
    </div>
    </div>
</template>

<script>
import Bscroll from 'better-scroll'
export default {
  name: 'CityList',
  props: {
    hotCity: Array,
    cities: Object,
    letter: String
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrapper)
  },
  methods: {
    handleClick (city) {
      this.$store.commit('changeCity', city)
    }
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
    }
  }
}
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl';

.border-topbottom {
    &:before {
        border-color: #ccc;
    }

    &:after {
        border-color: #ccc;
    }
}

.border-bottom {
    &:before {
        border-color: #ccc;
    }
}

.list {
    overflow: hidden;
    position: absolute;
    top: 1.56rem;
    left: 0;
    right: 0;
    bottom: 0;

    .title {
        line-height: 0.64rem;
        background: #eee;
        padding-left: 0.2rem;
        color: #666;
    }

    font-size: 0.26rem;

    .button-list {
        overflow: hidden;
        padding: 0.1rem 0.6rem 0.1rem 0.1rem;

        .button-wrapper {
            float: left;
            width: 33.33%;
        }

        .button {
            margin: 0.1rem;
            padding: 0.1rem 0;
            text-align: center;
            border: 0.02rem solid #ccc;
            border-radius: 0.06rem;
        }
    }

    .item-list {
        overflow: hidden;

        .item {
            left: 0.2rem;
            width: 100%;
            height: 0.55rem;
            padding-top: 0.2rem;
        }
    }
}
</style>
